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| 1 | Experimental cancer gene therapy by multiple anti-survivin hammerhead ribozymes显示文摘为癌症改进基因治疗的功效,我们设计了指向 survivin mRNA 的暴露的区域的四撞木鲛 ribozyme 侵入人体气管粘膜的病菌(到 R4 的 R1 ) 。除了在里面 vitro 描述,由教材扩展包括了劈开的顺序特性的一颗决心,为细胞增长并且为的试金在 vivo 肿瘤,生长被用来为 ribozyme 效率得分。survivin 表示的产生抑制经由 caspase-3-dependent 小径导致了有丝分裂的大祸和房间死亡。重要地, ribozyme 侵入人体气管粘膜的病菌的管理在一个 hepato 细胞的癌异种皮移植老鼠模型禁止了肿瘤生长。R1, R3 和 R4 ribozymes 的合作表示 synergistically 压制了 survivin 并且当这联合指向 survivin 抄本的所有主要形式,生产了大多数有势力反癌症效果。带在这份报告描述的多重撞木鲛 ribozymes 的侵入人体气管粘膜的病菌对癌症提供了柔韧的基因治疗策略。 | Qi Fei Hongyu Zhang Lili Fu Xinlan Dai Baomei Gao Min Ni Chao Ge Jinjun Li Xia Ding Yuwen Ke Xuebiao Yao Jingde Zhu | 2008 | Acta Biochimica et Biophysica Sinica2008,40,6: | 10 |
| 2 | Calcium silicate bioactive ceramics induce osteogenesis through oncostatin M显示文摘Immune reactions are a key factor in determining the destiny of bone substitute materials after implantation.Macrophages,the most vital factor in the immune response affecting implants,are critical in bone formation,as well as bone biomaterial-mediated bone repair.Therefore,it is critical to design materials with osteoimmunomodulatory properties to reduce host-to-material inflammatory responses by inducing macrophage polarization.Our previous study showed that calcium silicate(CS)bioceramics could significantly promote osteogenesis.Herein,we further investigated the effects of CS on the behavior of macrophages and how macrophages regulated osteogenesis.Under CS extract stimulation,the macrophage phenotype was converted to the M2 extreme.Stimulation by a macrophage-conditioned medium that was pretreated by CS extracts resulted in a significant enhancement of osteogenic differentiation of bone marrow mesenchymal stem cells(BMSCs),indicating the important role of macrophage polarization in biomaterial-induced osteogenesis.Mechanistically,oncostatin M(OSM)in the macrophage-conditioned medium promoted osteogenic differentiation of BMSCs through the ERK1/2 and JAK3 pathways.This in vivo study further demonstrated that CS bioceramics could stimulate osteogenesis better thanβ-TCP implants by accelerating new bone formation at defective sites in the femur.These findings improve our understanding of immune modulation of CS bioactive ceramics and facilitate strategies to improve the in vitro osteogenesis capability of bone substitute materials. | Panyu Zhou Demeng Xia Zhexin Ni Tianle Ou Yang Wang Hongyue Zhang Lixia Mao Kaili Lin Shuogui Xu Jiaqiang Liu | 2021 | Bioactive Materials2021,6,3: | 5 |
| 3 | Study on the Recent Tectonic Stress Field in the “Huoshan Seismic Window” Region显示文摘The focal mechanisms of 62 moderate-small earthquakes since 1980 in the'Huoshan seismic window'region are calculated with the method developed recently by Snoke,combining the use of the first motion of P,SV and SH waves with their amplitude ratios.Based on these abundant focal mechanisms,the mean tectonic stress field in the'Huoshan seismic window'region is inverted with the average stress tensor method,and the result shows that the'Huoshan seismic window'region is horizontally compressed in the near EW direction and horizontally dilated in the near NS direction,which is in accord with statistical results of focal mechanism parameters.We estimate the difference(also referred to as consistency parameterθ)between the force axis direction of the focal mechanism solution and the mean stress tensor,then further analyze the variation characteristics ofθversus time,and the relationship with moderately strong earthquakes in the east China region.The result indicates thatθin the'Huoshan seismic window'region is in good correspondence with moderately strong earthquakes in the East China region.Whenθis lower than the mean value,corresponding moderately strong earthquakes may occur in the East China region. | Ni Hongyu Liu Zemin Hong Dequan Li Lingli Zheng Xianjin Xu Xin | 2013 | Earthquake Research in China2013,27,4: | 1 |
| 4 | Study on the 3-D Velocity Structure around the Focal Region of the Anqing Earthquake in January 2011 and Discussion on the Causative Fault显示文摘The Anqing MS4.8 earthquake occurred on January 19, 2011, with the epicenter lying in the foreland deformation belt along the Yangtze River of the lower Yangtze block. After the earthquake, the field work team surveyed and collected building damage data, calculating and obtaining more accurate intensity distributions. The focal mechanism of the main shock was calculated tentatively using digital seismic wave data from provincial digital seismic networks using the FOCMEC program and the first motions of P, SV and SH waves with their amplitude ratios. Using the location results of the main shock and aftershocks by the Anhui seismic network, combining the three-dimensional crust velocity structure imaging results of the focal region by seismic tomography, and referring on intensity distribution of the elliptic major axis' predominant direction, we conclude by comprehensive analysis that the NE-trending Susong-Zongyang fault is possibly the causative fault of the Anqing earthquake. | Chen Anguo Ni Hongyu Liu Dongwang Shen Xiaoqi Liu Zemin Zheng Haigang | 2012 | Earthquake Research in China2012,26,2: | 1 |
| 5 | Injectable cartilage matrix hydrogel loaded with cartilage endplate stem cells engineered to release exosomes for non-invasive treatment of intervertebral disc degeneration显示文摘Low back pain,mainly caused by intervertebral disc degeneration(IVDD),is a common health problem;however,current surgical treatments are less than satisfactory.Thus,it is essential to develop novel non-invasive surgical methods for IVDD treatment.Here,we describe a therapeutic strategy to inhibit IVDD by injecting hydrogels modified with the extracellular matrix of costal cartilage(ECM-Gels)that are loaded with cartilage endplate stem cells(CESCs).After loaded with CESCs overexpressing Sphk2(Lenti-Sphk2-CESCs)and injected near the cartilage endplate(CEP)of rats in vivo,ECM-Gels produced Sphk2-engineered exosomes(Lenti-Sphk2-Exos).These exosomes penetrated the annulus fibrosus(AF)and transported Sphk2 into the nucleus pulposus cells(NPCs).Sphk2 activated the phosphatidylinositol 3-kinase(PI3K)/p-AKT pathway as well as the intracellular autophagy of NPCs,ultimately ameliorating IVDD.This study provides a novel and efficient non-invasive combinational strategy for IVDD treatment using injectable ECM-Gels loaded with CESCs that express Sphk2 with sustained release of functional exosomes. | Liwen Luo Junfeng Gong Zhouguang Wang Yao Liu Jiaming Cao Jinghao Qin Rui Zuo Hongyu Zhang Shuai Wang Ping Zhao Di Yang Mengjie Zhang Yanqiu Wang Junfeng Zhang Yue Zhou Changqing Li Bing Ni Zhiqiang Tian MingHan Liu | 2022 | Bioactive Materials2022,7,9: | 1 |
| 6 | Modeling colorectal tumorigenesis using the organoids derived from conditionally immortalized mouse intestinal crypt cells (ciMICs)显示文摘Intestinal cancers are developed from intestinal epithelial stem cells(ISCs)in intestinal crypts through a multi-step process involved in genetic mutations of oncogenes and tumor suppressor genes.ISCs play a key role in maintaining the homeostasis of gut epithelium.In 2009,Sato et al established a three-dimensional culture system,which mimicked the niche microenvironment by employing the niche factors,and successfully grew crypt ISCs into organoids or Mini-guts in vitro.Since then,the intestinal organoid technology has been used to delineate cellular signaling in ISC biology.However,the cultured organoids consist of heterogeneous cell populations,and it was technically challenging to introduce genomic changes into three-dimensional organoids.Thus,there was a technical necessity to develop a twodimensional ISC culture system for effective genomic manipulations.In this study,we established a conditionally immortalized mouse intestinal crypt(ciMIC)cell line by using a piggyBac transposon-based SV40 T antigen expression system.We showed that the ciMICs maintained long-term proliferative activity under two-dimensional niche factor-containing culture condition,retained the biological characteristics of intestinal epithelial stem cells,and could form intestinal organoids in three-dimensional culture.While in vivo cell implantation tests indicated that the ciMICs were non-tumorigenic,the ciMICs overexpressing oncogenic b-catenin and/or KRAS exhibited high proliferative activity and developed intestinal adenoma-like pathological features in vivo.Collectively,these findings strongly suggested that the engineered ciMICs should be used as a valuable tool cell line to dissect the genetic and/or epigenetic underpinnings of intestinal tumorigenesis. | Xiaoxing Wu Zhaoxia Li Hongyu Zhang Fang He Min Qiao Huaxiu Luo Jing Zhang Meng Zhang Yukun Mao William Wagstaff Yongtao Zhang Changchun Niu Xia Zhao Hao Wang Linjuan Huang Deyao Shi Qing Liu Na Ni Kai Fu Rex C.Haydon Russell R.Reid Hue H.Luu Tong-Chuan He Ziwei Wang Houjie Liang Bing-Qiang Zhang Ning Wang | 2021 | Genes & Diseases2021,8,6: | 1 |
| 7 | Osteocyte Egln1/Phd2 links oxygen sensing and biomineralization via FGF23显示文摘Osteocytes act within a hypoxic environment to control key steps in bone formation.FGF23,a critical phosphate-regulating hormone,is stimulated by low oxygen/iron in acute and chronic diseases,however the molecular mechanisms directing this process remain unclear.Our goal was to identify the osteocyte factors responsible for FGF23 production driven by changes in oxygen/iron utilization.Hypoxia-inducible factor-prolyl hydroxylase inhibitors(HIF-PHI)which stabilize HIF transcription factors,increased Fgf23 in normal mice,as well as in osteocyte-like cells;in mice with conditional osteocyte Fgf23 deletion,circulating i FGF23 was suppressed.An inducible MSC cell line(‘MPC2’)underwent FG-4592 treatment and ATACseq/RNAseq,and demonstrated that differentiated osteocytes significantly increased HIF genomic accessibility versus progenitor cells.Integrative genomics also revealed increased prolyl hydroxylase Egln1(Phd2)chromatin accessibility and expression,which was positively associated with osteocyte differentiation.In mice with chronic kidney disease(CKD),Phd1-3 enzymes were suppressed,consistent with FGF23 upregulation in this model.Conditional loss of Phd2 from osteocytes in vivo resulted in upregulated Fgf23,in line with our findings that the MPC2 cell line lacking Phd2(CRISPR Phd2-KO cells)constitutively activated Fgf23 that was abolished by HIF1αblockade.In vitro,Phd2-KO cells lost iron-mediated suppression of Fgf23 and this activity was not compensated for by Phd1 or-3.In sum,osteocytes become adapted to oxygen/iron sensing during differentiation and are directly sensitive to bioavailable iron.Further,Phd2 is a critical mediator of osteocyte FGF23 production,thus our collective studies may provide new therapeutic targets for skeletal diseases involving disturbed oxygen/iron sensing. | Megan L.Noonan Pu Ni Emmanuel Solis Yamil G.Marambio Rafiou Agoro Xiaona Chu Yue Wang Hongyu Gao Xiaoling Xuei Erica L.Clinkenbeard Guanglong Jiang Sheng Liu Steve Stegen Geert Carmeliet William R.Thompson Yunlong Liu Jun Wan Kenneth E.White | 2023 | Bone Research2023,11,1: | 1 |
| 8 | Quantum light source devices of In(Ga)As semiconductor self-assembled quantum dots显示文摘A brief introduction of semiconductor self-assembled quantum dots (QDs) applied in single-photon sources is given. Single QDs in confined quantum optical microcavity systems are reviewed along with their optical properties and coupling characteristics. Subsequently, the recent progresses in In(Ga)As QDs systems are summarized including the preparation of quantum light sources, multiple methods for embedding single QDs into different microcavities and the scalability of single-photon emitting wavelength. Particularly, several In(Ga)As QD single-photon devices are surveyed including In(Ga)As QDs coupling with nanowires, InAs QDs coupling with distributed Bragg reflection microcavity and the In(Ga)As QDs coupling with micropillar microcavities. Furthermore, applications in the field of single QDs technology are illustrated, such as the entangled photon emission by spontaneous parametric down conversion, the single-photon quantum storage, the chip preparation of single-photon sources as well as the single-photon resonance-fluorescence measurements. | Xiaowu He Yifeng Song Ying Yu Ben Ma Zesheng Chen Xiangjun Shang Haiqiao Ni Baoquan Sun Xiuming Dou Hao Chen Hongyue Hao Tongtong Qi Shushan Huang Hanqing Liu Xiangbin Su Xinliang Su Yujun Shi Zhichuan Niu | 2019 | Journal of Semiconductors2019,40,7: | 0 |
| 9 | Polyelectrolyte complex-based thermochromic hydrogels containing carbonized polymer dots for smart windows with fast response,excellent solar modulation ability,and high durability显示文摘Thermochromic smart windows have gained increasing popularity in light modulation and energy management in buildings.However,the fabrication of flexible thermochromic smart windows with high luminous transmittance(Tlum),tailorable critical temperature(τc),strong solar modulation ability(ΔTsol),and long-term durability remains a huge challenge.In this study,hydrogel-based thermochromic smart windows are fabricated by sandwiching thermochromic hydrogels of polyallylamine hydrochloride,polyacrylic acid,and carbonized polymer dots(CPDs)complexes between two pieces of transparent substrates.Benefiting from the incorporation of nanosized CPDs,the thermochromic hydrogel has an ultrahigh Tlum of~98.7%,a desirableτc of~24.2℃,aΔTsol of~89.3%and a rapid transition time of~3 s from opaque state to transparent state.Moreover,the thermochromic hydrogel exhibits excellent anti-freezing ability,tight adhesion toward various substrates,and excellent self-healing capability.The self-healing capability enables the fabrication of large-area smart windows by welding multiple hydrogel pieces.The smart windows retain their original thermochromic properties after being stored under ambient conditions for at least 147 days or undergoing 10,000 uninterrupted heating/cooling cycles.The model houses with smart windows can achieve a temperature reduction of 9.2℃,demonstrating the excellent indoor temperature modulation performance of the smart windows. | Yuting Wang Xu Fang Siheng Li Ni An Hongyu Pan Junqi Sun | 2024 | SmartMat2024,5,2: | 0 |
| 10 | Corrigendum to ‘Modeling colorectal tumorigenesis using the organoids derived from conditionally immortalized mouse intestinal crypt cells (ciMICs)’ [Genes Dis 8 (2021) 814-826]显示文摘The authors regret that an image assembly(copy/paste)error in Figure 3D,in which the image for the organoid of'Primary MiCs'group was erroneously duplicated with an image of primary MICs that was previously published.The corrected figure is shown below.As shown in the corrected Figure 3D,this error does not adversely impact the conclusion of the original work.The authors would like to apologise forany inconvenience caused. | Xiaoxing Wu Zhaoxia Li Hongyu Zhang Fang He Min Qiao Huaxiu Luo Jing Zhang Meng Zhang Yukun Mao William Wagstaff Yongtao Zhang Changchun Niu Xia Zhao Hao Wang Linjuan Huang Deyao Shi Qing Liu Na Ni Kai Fu Rex C. Haydon Russell R. Reid Hue H. Luu Tong-Chuan He Ziwei Wang Houjie Liang Bing-Qiang Zhang Ning Wang | 2023 | Genes & Diseases2023,10,2: | 0 |
| 11 | A multi-scale 3-D crust velocity model in the Hefei-Chao Lake area around the southern segment of Tanlu Fault Zone显示文摘Regional high-precision velocity models of the crust are an important foundation for examining seismic activity,seismogenic environments,and disaster distribution characteristics.The Hefei-Chao Lake area contains the main geological units of Hefei Basin,with thick sediments and the Chao Lake depression.Several major concealed faults of the southern NNE-trending Tanlu Fault Zone cross this area.To further explore the underground distribution characteristics of the faults and their tectonic evolutionary relationship with adjacent tectonic units,this study used ambient noise data recorded by a seismic array deployed in Hefei City and Chao Lake,constructing a 3-D velocity model at the depth of 1–8 km.Then a multi-scale high-resolution 3-D velocity model of this area was constructed by this new upper crustal velocity model with the previous middle and lower crustal model.The new model reveals that a high-velocity belt is highly consistent with the strike of the Tanlu Fault Zone,and a low-velocity sedimentary characteristic is consistent with the Hefei Basin and Chao Lake depression.The distribution morphology of high and low velocity bodies shows that the sedimentary pattern of Hefei-Chao Lake area is closely related to the tectonic evolution of the Tanlu Fault Zone since the Mesozoic.This study also identifies multiple low-velocity anomalies in the southeastern Hefei City.We speculate that strong ground motion during the 2009 Feidong earthquake(magnitude of 3.5)was related to amplification by the thick sediments in the Hefei Basin.We also discuss further applications of multi-scale high-resolution models of the shallow layer to strong ground motion simulations in cities and for earthquake disaster assessments. | Lingli Li Huajian Yao Song Luo Junhui Li Xiaoli Wang Hongyu Ni Ziwen Bao | 2021 | Earthquake Science2021,34,4: | 0 |